Hearing aid and IOS 16
In IOS previously, you could connect a hearing aid to the iPhone. When I updated to IOS 16 this function disappeared. I can't connect to my hearing aids. Is this something that will be updated?
After doing an OS update and having issues with bluetooth pairing you should try a Reset Network Settings. It will reset your bluetooth and wifi and also clean out any old pairing information. Here is a link to the instructions, but only do a RESET Network Settings: Return iPhone settings to their defaults - Apple Support